bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9341/2:b..l rcu: (detected by 1, t=10502 jiffies, g=21065, q=1855 ncpus=2) task:syz.8.1140 state:R running task stack:0 pid:9341 tgid:9333 ppid:7969 task_flags:0x400040 flags:0x00000010 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5387 [inline] __schedule+0x1b74/0x2d24 kernel/sched/core.c:7188 preempt_schedule_irq+0x74/0x174 kernel/sched/core.c:7512 raw_irqentry_exit_cond_resched+0x30/0x40 kernel/entry/common.c:142 irqentry_exit_to_kernel_mode_preempt+0x44/0x54 include/linux/irq-entry-common.h:476 arm64_exit_to_kernel_mode+0x3c/0x90 arch/arm64/kernel/entry-common.c:59 __el1_irq arch/arm64/kernel/entry-common.c:499 [inline] el1_interrupt+0x4c/0x60 arch/arm64/kernel/entry-common.c:509 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:514 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:590 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P) arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P) lock_is_held_type+0x13c/0x190 kernel/locking/lockdep.c:5942 (P) lock_is_held include/linux/lockdep.h:249 [inline] rcu_read_lock_held+0x44/0x6c kernel/rcu/update.c:351 xa_entry include/linux/xarray.h:1226 [inline] xas_descend lib/xarray.c:208 [inline] xas_load+0x18c/0x4f0 lib/xarray.c:246 xas_find+0x120/0x61c lib/xarray.c:1406 xas_next_entry+0x33c/0x38c include/linux/xarray.h:-1 next_uptodate_folio+0x48/0x5e0 mm/filemap.c:3705 filemap_map_pages+0x218/0x1cb8 mm/filemap.c:3896 do_fault_around mm/memory.c:5851 [inline] do_read_fault mm/memory.c:5884 [inline] do_fault mm/memory.c:6027 [inline] do_pte_missing+0x17b0/0x287c mm/memory.c:4550 handle_pte_fault mm/memory.c:6411 [inline] __handle_mm_fault mm/memory.c:6549 [inline] handle_mm_fault+0x1568/0x2450 mm/memory.c:6718 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x678/0x20f0 mm/gup.c:1428 populate_vma_page_range+0x260/0x358 mm/gup.c:1860 __mm_populate+0x200/0x324 mm/gup.c:1963 mm_populate include/linux/mm.h:4137 [inline] vm_mmap_pgoff+0x3a4/0x470 mm/util.c:586 ksys_mmap_pgoff+0xd0/0x5b4 mm/mmap.c:606 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0xf8/0x110 arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 net_ratelimit: 72840 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:7a:bb:ef:1e:bd:f3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 72419 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:7a:bb:ef:1e:bd:f3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:7a:bb:ef:1e:bd:f3, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)